ABAP Select data from SAP table AFIHF into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP AFIHF table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to AFIHF. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the AFIHF table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_AFIHF TYPE STANDARD TABLE OF AFIHF,
      WA_AFIHF TYPE AFIHF,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <AFIHF> TYPE AFIHF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_AFIHF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM AFIHF
  INTO TABLE IT_AFIHF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AFIHF
*  INTO TABLE @DATA(IT_AFIHF2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_AFIHF INDEX 1 INTO DATA(WA_AFIHF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_AFIHF ASSIGNING <AFIHF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AFIHF>-ARTPR = 1.
<AFIHF>-PRIOK = 1.
<AFIHF>-EQUNR = 1.
<AFIHF>-BAUTL = 1.
<AFIHF>-ILOAN = 1.

ENDLOOP.

LOOP AT IT_AFIHF INTO WA_AFIHF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AFIHF-ILOAI, sy-vline,
  WA_AFIHF-ANLZU, sy-vline,
  WA_AFIHF-IWERK, sy-vline,
  WA_AFIHF-INGPR, sy-vline,
  WA_AFIHF-APGRP, sy-vline,
  WA_AFIHF-PM_OBJTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AFIHF you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_AFIHF TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_AFIHF INTO WA_AFIHF.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFIHF-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFIHF-EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field BAUTL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_AFIHF-BAUTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFIHF-BAUTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFIHF-KUNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFIHF-KUNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GAUEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AFIHF-GAUEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFIHF-GAUEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WARPL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFIHF-WARPL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFIHF-WARPL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WAPOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFIHF-WAPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFIHF-WAPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LAUFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFIHF-LAUFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFIHF-LAUFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field QMNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFIHF-QMNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFIHF-QMNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field SERIALNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_AFIHF-SERIALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFIHF-SERIALNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field SERMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_AFIHF-SERMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFIHF-SERMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAINTORDPERSONRESPONSIBLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFIHF-MAINTORDPERSONRESPONSIBLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFIHF-MAINTORDPERSONRESPONSIBLE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field /ISDFPS/MEQUI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFIHF-/ISDFPS/MEQUI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFIHF-/ISDFPS/MEQUI.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_AFIHF_STR, 
ARTPR TYPE STRING,
PRIOK TYPE STRING,
EQUNR TYPE STRING,
BAUTL TYPE STRING,
ILOAN TYPE STRING,
ILOAI TYPE STRING,
ANLZU TYPE STRING,
IWERK TYPE STRING,
INGPR TYPE STRING,
APGRP TYPE STRING,
PM_OBJTY TYPE STRING,
GEWRK TYPE STRING,
KUNUM TYPE STRING,
ANING TYPE STRING,
GAUZT TYPE STRING,
GAUEH TYPE STRING,
ANLBD TYPE STRING,
ANLVD TYPE STRING,
ANLBZ TYPE STRING,
ANLVZ TYPE STRING,
INSPK TYPE STRING,
DATAN TYPE STRING,
WARPL TYPE STRING,
ABNUM TYPE STRING,
WAPOS TYPE STRING,
LAUFN TYPE STRING,
OBKNR TYPE STRING,
REVNR TYPE STRING,
ADDAT TYPE STRING,
ADUHR TYPE STRING,
IPHAS TYPE STRING,
ILART TYPE STRING,
QMNUM TYPE STRING,
HISDA TYPE STRING,
AKKNZ TYPE STRING,
PLKNZ TYPE STRING,
SERIALNR TYPE STRING,
SERMAT TYPE STRING,
DEVICEID TYPE STRING,
SCREENTY TYPE STRING,
ADPSP TYPE STRING,
RSUPG TYPE STRING,
CHANGEDDATETIME TYPE STRING,
MAINTORDPERSONRESPONSIBLE TYPE STRING,
MAINTORDOVRLPROCPHASE TYPE STRING,
MAINTORDOVRLPROCSUBPHASE TYPE STRING,
DUMMY_AFIH_INCL_EEW_PS TYPE STRING,
/ISDFPS/OBJNR TYPE STRING,
/ISDFPS/MEQUI TYPE STRING,
/ISDFPS/MHIO_ADDATE TYPE STRING,
/ISDFPS/MHIO_ADTIME TYPE STRING,
/ISDFPS/USERMODE TYPE STRING,
UII TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AFIHF_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_AFIHF_STR-ARTPR sy-vline 
WA_AFIHF_STR-PRIOK sy-vline 
WA_AFIHF_STR-EQUNR sy-vline 
WA_AFIHF_STR-BAUTL sy-vline 
WA_AFIHF_STR-ILOAN sy-vline 
WA_AFIHF_STR-ILOAI sy-vline 
WA_AFIHF_STR-ANLZU sy-vline 
WA_AFIHF_STR-IWERK sy-vline 
WA_AFIHF_STR-INGPR sy-vline 
WA_AFIHF_STR-APGRP sy-vline 
WA_AFIHF_STR-PM_OBJTY sy-vline 
WA_AFIHF_STR-GEWRK sy-vline 
WA_AFIHF_STR-KUNUM sy-vline 
WA_AFIHF_STR-ANING sy-vline 
WA_AFIHF_STR-GAUZT sy-vline 
WA_AFIHF_STR-GAUEH sy-vline 
WA_AFIHF_STR-ANLBD sy-vline 
WA_AFIHF_STR-ANLVD sy-vline 
WA_AFIHF_STR-ANLBZ sy-vline 
WA_AFIHF_STR-ANLVZ sy-vline 
WA_AFIHF_STR-INSPK sy-vline 
WA_AFIHF_STR-DATAN sy-vline 
WA_AFIHF_STR-WARPL sy-vline 
WA_AFIHF_STR-ABNUM sy-vline 
WA_AFIHF_STR-WAPOS sy-vline 
WA_AFIHF_STR-LAUFN sy-vline 
WA_AFIHF_STR-OBKNR sy-vline 
WA_AFIHF_STR-REVNR sy-vline 
WA_AFIHF_STR-ADDAT sy-vline 
WA_AFIHF_STR-ADUHR sy-vline 
WA_AFIHF_STR-IPHAS sy-vline 
WA_AFIHF_STR-ILART sy-vline 
WA_AFIHF_STR-QMNUM sy-vline 
WA_AFIHF_STR-HISDA sy-vline 
WA_AFIHF_STR-AKKNZ sy-vline 
WA_AFIHF_STR-PLKNZ sy-vline 
WA_AFIHF_STR-SERIALNR sy-vline 
WA_AFIHF_STR-SERMAT sy-vline 
WA_AFIHF_STR-DEVICEID sy-vline 
WA_AFIHF_STR-SCREENTY sy-vline 
WA_AFIHF_STR-ADPSP sy-vline 
WA_AFIHF_STR-RSUPG sy-vline 
WA_AFIHF_STR-CHANGEDDATETIME sy-vline 
WA_AFIHF_STR-MAINTORDPERSONRESPONSIBLE sy-vline 
WA_AFIHF_STR-MAINTORDOVRLPROCPHASE sy-vline 
WA_AFIHF_STR-MAINTORDOVRLPROCSUBPHASE sy-vline 
WA_AFIHF_STR-DUMMY_AFIH_INCL_EEW_PS sy-vline 
WA_AFIHF_STR-/ISDFPS/OBJNR sy-vline 
WA_AFIHF_STR-/ISDFPS/MEQUI sy-vline 
WA_AFIHF_STR-/ISDFPS/MHIO_ADDATE sy-vline 
WA_AFIHF_STR-/ISDFPS/MHIO_ADTIME sy-vline 
WA_AFIHF_STR-/ISDFPS/USERMODE sy-vline 
WA_AFIHF_STR-UII sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.